Scheduled Classes are 2
evenings during the week (last Monday & Wednesday of each month) from 6:30-9:30
pm or Saturday from 8:00 am till 3:00 pm. We also provide training
at your location for private groups. Call for rates.

Cost $199.00Price includes courseware,
not included equipment, rentals, fills or fees (boat or quarry)

If you have a group of 2 or
more, we can set up a call to fit your schedule!

What is "Enriched Air" Nitrox?

We are hearing a lot about enriched
air or Nitrox these days. But, what is it? Simply speaking,
enriched air is air with additional oxygen (or reduced nitrogen).
Air, as you know from your open water course, is made up of Oxygen (21%)
and Nitrogen (79%). If you take air and either add oxygen or
remove some of the nitrogen you have what is being called "enriched air"
or "enriched air Nitrox".
Since the amount of nitrogen in the gas is reduced, it is safer air.

Why use Nitrox?

Divers find that they enjoy the
extra time it allows them at depth; still
others report that after a day of diving with nitrox they feel
better and more energetic than they do after
diving with air. Nitrox allows you more bottom time because
it has less nitrogen. The extra bottom
time is especially welcome in mid-depth ranges and when making more than one dive a day. Many resort
locations are making nitrox available to divers certified in its use. We can now stretch our
under-water vacation time and have less fatigue.

Isn't Nitrox only for deep
dives?

Nitrox is
definitely not for deep dives. Its greatest use is for diving at
moderate depths. In fact, enriched air
cannot be used for deep diving because the higher oxygen content
can be toxic at depth. This is its major limitation. A large part
of
nitrox dive training is spent learning how to safely cope with
this restriction.

What certification is required
to use Nitrox?

NAUI or T.D.I.
Nitrox certification or the equivalent. The T.D.I. specialty
course is designed to
teach you the procedures for safe, recreational non-decompression diving
with nitrox.

Can existing Scuba equipment be
used with Nitrox?

Yes. Tanks only need to be
specially marked only when filled with
nitrox. This label also
indicates the depth limit and other information.

Do I have to have my tanks
Oxygen cleaned?

That depends
upon the method that the dive center uses for filling tanks. Some
dive centers require that tanks be oxygen
cleaned annually when used with nitrox, due to the tank filing
methods which they use. At The
Illinois Institute of Diving we can fill almost any tank with nitrox!

Are Nitrox fills
expensive?

Nitrox fills are slightly
more expensive than air fills, but the total cost is less per minute
because of expanded no decompression time and shorter surface intervals.